Double-temperature-zone module and refrigerator car

Abstract

The double-temperature-zone module comprises a refrigerator compartment, a refrigerating unit and a fan module, the refrigerator compartment comprises a first temperature zone and a second temperature zone which are isolated from each other, the first temperature zone is provided with an air outlet duct, the air outlet duct extends to the second temperature zone, and the air outlet duct is provided with an air inlet and a first air outlet; the air inlet is located in the first temperature area, and the first air outlet is located in the second temperature area. The refrigerating unit is connected to the first temperature zone and used for adjusting the temperature of gas in the first temperature zone. The fan module is connected to the air outlet channel and used for guiding cold air in the first temperature area into the air outlet channel, and the air outlet direction of the fan module is the same as the length extending direction of the air outlet channel. The air outlet direction of the fan module is the same as the length extension direction of the air outlet duct, so that straight air outlet is realized, namely the air outlet of the fan cannot be directly blown to the inner wall of the air duct, the air resistance can be reduced, the air flow is smoother, and the refrigeration efficiency of the double-temperature-zone module can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerated trucks, and in particular to a dual-temperature zone module and a refrigerated truck comprising the dual-temperature zone module. Background Art

[0002] In the existing system, some refrigerated trucks feature dual-temperature zone designs. These trucks are increasingly popular in the market, enabling the simultaneous delivery of goods with two different temperature requirements. These trucks typically feature an evaporator in the low-temperature zone and no evaporator in the normal-temperature zone. An air duct structure, coupled with a matching fan, transports cool air from the low-temperature zone to the normal-temperature zone.

[0003] In the process of implementing this application, the inventors discovered that the prior art has at least the following problems:

[0004] At this stage, considering the problem of cargo loading, the above-mentioned duct structure is installed on the side walls of the low-temperature zone and the normal temperature zone, and the fan used in the supporting duct structure is installed on the side wall of the duct structure. This design causes the fan to blow air directly onto the inner wall of the duct, resulting in large wind resistance and unsmooth wind flow, thereby reducing the cooling efficiency of the dual temperature zones. Utility Model Content

[0005] In order to overcome the problems existing in the above-mentioned prior art, the main purpose of the present application is to provide a dual-temperature zone module with higher refrigeration efficiency. Another purpose of the present application is to provide a refrigerated truck including the above-mentioned dual-temperature zone module.

[0006] The present application provides a dual-temperature zone module, comprising:

[0007] A refrigerated compartment includes a first temperature zone and a second temperature zone isolated from each other, wherein the first temperature zone is provided with an air outlet duct, the air outlet duct extending to the second temperature zone, and the air outlet duct is provided with an air inlet and a first air outlet, the air inlet is located in the first temperature zone, and the first air outlet is located in the second temperature zone;

[0008] a refrigeration unit connected to the first temperature zone, the refrigeration unit being used to adjust the temperature of the gas in the first temperature zone;

[0009] A fan module is connected to the air outlet duct. The fan module is used to introduce the cold air in the first temperature zone from the air inlet into the air outlet duct, so that the cold air flows through the air outlet duct and flows out from the first air outlet to the second temperature zone, and the air outlet direction of the fan module is in the same direction as the length extension direction of the air outlet duct.

[0010] In some embodiments, the fan module is provided with an air supply port, which is connected to the air outlet duct, and along the length extension direction of the air outlet duct, the projection of the air supply port completely falls within the projection of the air inlet of the air outlet duct.

[0011] In some embodiments, the fan module includes a frame and a fan. The frame is arranged on the inner wall of the first temperature zone, and the frame is connected to the air outlet. The fan is arranged in the frame, and the frame is provided with a second return air outlet and the supply air outlet.

[0012] In some embodiments, the frame is provided with a plurality of second air inlet holes, and the plurality of second air inlet holes constitute the second air return port.

[0013] In some embodiments, the first air outlet is composed of a plurality of first air outlet holes.

[0014] In some embodiments, the length extension direction of the portion of the air outlet duct located in the first temperature zone is the same as the length extension direction of the portion of the air outlet duct located in the second temperature zone, forming a straight-through air duct.

[0015] In some embodiments, the refrigerated compartment includes a compartment body and a partition, the compartment body is provided with a storage cavity, the partition is arranged in the storage cavity and connected to the inner wall of the storage cavity, so that the storage cavity is divided into the first temperature zone and the second temperature zone.

[0016] In some embodiments, the refrigeration unit includes an indoor unit and an outdoor unit, the indoor unit is connected to the inner top wall of the first temperature zone, and the outdoor unit is connected to the outer side wall of the first temperature zone.

[0017] In some embodiments, the fan module and the indoor unit are arranged on the same inner wall of the first temperature zone, or the fan module and the indoor unit are arranged on two adjacent inner walls of the first temperature zone.

[0018] Accordingly, the present application also provides a refrigerated truck, comprising:

[0019] Automobile chassis;

[0020] The dual-temperature zone module as described in any of the above embodiments, wherein the dual-temperature zone module is arranged on the vehicle chassis;

[0021] A power battery is arranged on the vehicle chassis and is electrically connected to the dual-temperature zone module.

[0022] In some embodiments, the refrigerated truck also includes a voltage conversion module, which is electrically connected to the power battery and the fan module respectively. The voltage conversion module is used to convert the high voltage electricity provided by the power battery into low voltage electricity and provide it to the fan module to provide working power for the fan module.

[0023] Compared with the prior art, the dual-temperature zone module and refrigerated truck provided by this application have at least the following beneficial effects:

[0024] The dual-temperature zone module provided in the present application includes a refrigerated compartment, a refrigeration unit and a fan module. The refrigerated compartment includes a first temperature zone and a second temperature zone isolated from each other. The first temperature zone is provided with an air outlet duct, which extends to the second temperature zone, and the air outlet duct is provided with an air inlet and a first air outlet. The air inlet is located in the first temperature zone, and the first air outlet is located in the second temperature zone. The refrigeration unit is connected to the first temperature zone, and the refrigeration unit is used to adjust the temperature of the gas in the first temperature zone. The fan module is connected to the air outlet duct, and the fan module is used to guide the cold air in the first temperature zone from the air inlet into the air outlet duct, so that the cold air flows through the air outlet duct and flows out from the first air outlet to the second temperature zone, and the air outlet direction of the fan module is in the same direction as the length extension direction of the air outlet duct.

[0025] It can be seen that the present application realizes straight air outlet by making the air outlet direction of the fan module the same as the length extension direction of the air outlet duct, that is, the air outlet of the fan will not directly blow onto the inner wall of the air duct, thereby reducing wind resistance and making the air flow smoother, thereby improving the cooling efficiency of the dual temperature zones.

[0026] The refrigerated truck provided in this application includes the dual-temperature zone module, and therefore has the same technical effect as the dual-temperature zone module. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a refrigerated truck provided in an embodiment of the present application.

[0028] Figure 2 for Figure 1 A cross-sectional view of the refrigerated compartment of a medium refrigerated truck.

[0029] Figure 3 A schematic structural diagram of the fan module provided in an embodiment of the present application.

[0030] Figure 4 A cross-sectional view of a refrigerated compartment of a refrigerated truck according to another embodiment of the present application.

[0031] Figure 5 A cross-sectional view of a refrigerated compartment of a refrigerated truck according to another embodiment of the present application.

[0032] Figure ID:

[0033] 1. Vehicle chassis; 2. Refrigerated compartment; 201. First temperature zone; 202. Second temperature zone; 21. Compartment body; 210. Bottom tank; 22. Partition; 3. Refrigeration unit; 31. Indoor unit; 32. Outdoor unit; 4. Fan module; 41. Frame; 411. Second return air outlet; 412. Supply air outlet; 42. Fan; 5. Baffle; 6. First baffle; 7. Second baffle; 101. First air outlet; 102. First return air outlet; 103. Second air outlet; 100a. Air outlet duct; 100b. Return air duct. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0035] In the description of this application, unless otherwise expressly specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more, and the term "multiple" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0036] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described from the perspectives shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also indirectly connected to the other element "on" or "under" through an intermediate element.

[0037] In existing refrigerated trucks, high-voltage power is typically supplied to the refrigeration unit by a power battery, while low-voltage power is supplied to the fan module by a low-voltage battery. This poses a significant risk of low-voltage battery discharge. Furthermore, the fan module and refrigeration unit control systems are separate, resulting in poor control accuracy and difficulty. Furthermore, the airflow from the fan module directly hits the duct wall, resulting in unsmooth airflow, high wind resistance, and low cooling efficiency.

[0038] Reference Figure 1As shown, an embodiment of the present application discloses a refrigerated truck, which includes a vehicle chassis 1, a power battery (not shown in the figure), a low-voltage battery (not shown in the figure) and a dual-temperature zone module. The dual-temperature zone module is arranged on the vehicle chassis 1, and the power battery and the low-voltage battery are respectively arranged on the vehicle chassis 1. The low-voltage battery is a low-voltage power source, which is used to provide electrical energy for the low-voltage equipment of the refrigerated truck; the power battery is a high-voltage power source, and the power battery is electrically connected to the dual-temperature zone module. The power battery can provide electrical energy for the dual-temperature zone module and other high-voltage equipment in the refrigerated truck that requires power, so that the dual-temperature zone module and other electrical equipment in the refrigerated truck can work normally.

[0039] Also refer to Figure 1 and Figure 2 As shown, the dual temperature zone module includes a refrigerated compartment 2, a refrigeration unit 3 and a fan module 4. The refrigerated compartment 2 is arranged on the vehicle chassis 1, and the refrigerated compartment 2 includes a first temperature zone 201 and a second temperature zone 202 that are isolated from each other. An air outlet duct ( Figure 2 The air outlet duct extends to the second temperature zone 202, and the air outlet duct is provided with an air inlet and a first air outlet 101, the air inlet is located in the first temperature zone 201, and the first air outlet 101 is located in the second temperature zone 202; the second temperature zone 202 is provided with a return air duct ( Figure 2 (not shown in the figure), the return air duct extends to the first temperature zone 201 and is provided with a first return air inlet 102 and a second air outlet 103. The first return air inlet 102 is located in the second temperature zone 202, and the second air outlet 103 is located in the first temperature zone 201. The refrigeration unit 3 is connected to the first temperature zone 201 and is used to adjust the temperature of the air in the first temperature zone 201, so that the first temperature zone 201 forms a refrigerated zone with a first preset temperature. The fan module 4 is connected to the air outlet duct, and the air outlet direction of the fan module 4 is the same as the length extension direction of the air outlet duct (i.e., the same direction). The fan module 4 is used to guide the cold air in the first temperature zone 201 into the air outlet duct, so that the cold air in the first temperature zone 201 flows into the air outlet duct from the air inlet of the air outlet duct, flows through the air outlet duct, and then flows out from the first air outlet 101 to the second temperature zone 202. The air in the second temperature zone 202 flows into the return air duct from the first return air duct 102, flows through the return air duct, and then flows out from the second air outlet 103 to the first temperature zone 201, thereby achieving heat exchange, thereby forming the second temperature zone 202 into a refrigerated zone with a second preset temperature. The first preset temperature is different from the second preset temperature, thereby achieving the effect of having two temperature zones in one refrigerated compartment 2.

[0040] Compared with the prior art in which the fan is installed on the side wall of the duct structure, which causes the fan air to blow directly onto the inner wall of the duct and results in large wind resistance, the present application realizes straight wind outlet by making the air outlet direction of the fan module 4 the same as the length extension direction of the air outlet duct, that is, the fan air will not blow directly onto the inner wall of the duct, thereby reducing wind resistance and making the wind flow smoother, thereby improving the cooling efficiency of the dual-temperature zone module.

[0041] In some embodiments, the refrigerated truck further includes a voltage conversion module provided in the refrigeration unit 3, the voltage conversion module being electrically connected to the power battery and the fan module 4, respectively. The voltage conversion module can be used to convert the high voltage electricity provided by the power battery into low voltage electricity and provide it to the fan module 4, so as to provide working power for the fan module 4 and enable the fan module 4 to operate normally. In this embodiment, the power battery provides high voltage electricity to the refrigeration unit 3, and the refrigeration unit 3 converts the high voltage electricity into low voltage electricity before providing it to the fan module 4, thereby eliminating the need to provide low voltage electricity to the fan module 4 through a low voltage battery, thereby reducing the consumption of the low voltage battery and the risk of low voltage battery power failure.

[0042] Continue to refer to Figure 2 As shown, the refrigerated compartment 2 includes a compartment body 21 and a partition 22. The compartment body 21 has a storage cavity. The partition 22 is arranged in the storage cavity and connected to the inner wall of the storage cavity, so that the storage cavity is divided into a first temperature zone 201 and a second temperature zone 202. The first temperature zone 201 and the second temperature zone 202 can be two refrigerated areas with different temperatures, so as to be able to store items with different temperature requirements. For example, the first temperature zone 201 can be a refrigerated area with a temperature range of -10°C to 5°C, and the second temperature zone 202 can be a refrigerated area with a temperature range of 0-5°C. In this way, the refrigerated truck can be used to transport frozen items while also transporting other items with different storage temperatures. During cooling, the power battery provides high-voltage electric energy to the refrigeration unit 3, so that the refrigeration unit 3 can work normally to cool the first temperature zone 201, so that the first temperature zone 201 forms a cold storage zone with a first preset temperature; at the same time, the high-voltage electricity provided by the power battery is converted into low-voltage electricity by the voltage conversion module and provided to the fan module 4, so that the fan module 4 can work normally, and the cold air in the first temperature zone 201 is transported to the second temperature zone 202 through the air outlet duct, and the air in the second temperature zone 202 is transported to the first temperature zone 201 through the return air duct, forming a cooling circuit, so that the second temperature zone 202 forms a cold storage zone with a second preset temperature.

[0043] In this embodiment, the refrigeration unit 3 can be used to control the operation of the fan module 4, and the working output capacity of the fan module 4 can be adjusted in real time according to the actual demand for cooling capacity, thereby improving the energy efficiency of the fan module 4.

[0044] Continue to refer to Figure 2As shown, the refrigeration unit 3 includes an indoor unit 31 and an outdoor unit 32. The indoor unit 31 is located within the first temperature zone 201 and can be connected to the inner top wall of the first temperature zone 201. The outdoor unit 32 is located outside the refrigerated compartment and connected to the outer side wall of the first temperature zone 201. The fan module 4 and the indoor unit 31 are located on the same inner wall of the first temperature zone 201 or on two adjacent inner walls. In this embodiment, the fan module 4 is relatively low in overall height, and its top portion is suspended from the top wall of the first temperature zone 201, thus eliminating the space below the first temperature zone 201 and allowing the refrigerated compartment 2 to carry more items.

[0045] Specifically, the indoor unit 31 includes an inner housing, an evaporator, and an evaporation fan. The evaporator and evaporation fan are respectively disposed within the inner housing, and the inner housing is provided with a first air vent and a second air vent to enable gas exchange with the first temperature zone 201 through the first air vent and the second air vent. The outdoor unit 32 includes an outer housing, a compressor, a condenser, a condensation fan, and an expansion valve. The compressor, condenser, condensation fan, and expansion valve are respectively disposed within the outer housing. The compressor, condenser, expansion valve, and evaporator are sequentially connected via pipelines to form a circulation loop. The outer housing is provided with a third air vent and a fourth air vent to enable gas exchange with the atmosphere.

[0046] Reference Figure 3 As shown, the fan module 4 includes a frame 41 and a fan 42. In this embodiment, the fan 42 can be a centrifugal fan. The frame 41 is arranged on the inner wall of the first temperature zone 201, and the side wall of the frame 41 is provided with an air supply port 412, which is connected to the air inlet of the air outlet duct. The bottom of the frame 41 is provided with a second air return port 411. The fan 42 is arranged in the frame 41. When the fan 42 is running, the cold air in the first temperature zone 201 will flow into the frame 41 through the second air return port 411, and then flow to the second temperature zone 202 through the air supply port 412, the air inlet of the air outlet duct, the air outlet duct and the first air outlet 101 in sequence, thereby cooling the second temperature zone 202. In addition, the air in the second temperature zone 202 can flow to the first temperature zone 201 through the first air return port 102, the return air duct and the second air outlet 103 to achieve gas circulation.

[0047] In some embodiments, the length extension direction of the portion of the air outlet duct located in the first temperature zone 201 is the same as the length extension direction of the portion of the air outlet duct located in the second temperature zone 202 (i.e., in the same direction), forming a straight-through air duct, and the direction of the air supply port 412 is the same as the length extension direction of the air outlet duct (i.e., in the same direction), and along the length extension direction of the air outlet duct, the projection of the air supply port 412 completely falls within the projection of the air inlet of the air outlet duct. For example, the size of the air supply port 412 can exactly match the cross-sectional size of the air outlet duct, or the air supply port 412 can be smaller than the cross-sectional size of the air outlet duct, wherein the size of the air supply port 412 can be changed by changing the amount of cutting on the air outlet side of the frame 41. The fan module 4 of this embodiment uses a centrifugal fan, so that the cold air can flow directly into the air outlet duct, facilitating the direct delivery of the cold air; and because the air outlet direction of the fan 42 is the same as the length extension direction of the air outlet duct, the wind resistance in the air duct is reduced, thereby improving the delivery efficiency of the fan module 4. At the same time, the air supply port 412 is made smaller than or equal to the cross section of the air outlet duct, so that the wind speed and air volume in the air duct can be changed by changing the size of the air supply port 412, which can be applied to more cooling scenarios.

[0048] In this embodiment, the bottom wall of the frame 41 is provided with a plurality of second air inlet holes, which together form a second air return port 411. By forming the second air return port 411 with a plurality of second air inlet holes, this embodiment minimizes the entry of large impurities within the first temperature zone 201 into the fan module 4.

[0049] Continue to refer to Figure 2 As shown, in this embodiment, the dual-temperature zone module further includes a baffle 5 and an isolation plate (not shown). The baffle 5 is connected to two inner walls adjacent to the storage cavity of the vehicle body 21 to form a ventilation duct. The isolation plate is disposed within the ventilation duct to separate the ventilation duct into an outlet duct and a return air duct. The baffle 5 is provided with a plurality of first air outlet holes, a plurality of first air inlet holes, and a plurality of second air outlet holes. The plurality of first air outlet holes form a first air outlet 101, the plurality of first air inlet holes form a first return air outlet 102, and the plurality of second air outlet holes form a plurality of second air outlet 103. In this embodiment, the first air outlet 101 is composed of multiple first air outlet holes, so that the outlet air is more dispersed and diffused more quickly in the second temperature zone 202 to achieve rapid cooling. The first return air outlet 102 is composed of multiple first air inlet holes, so as to avoid large-volume impurities in the second temperature zone 202 from entering the air return duct as much as possible. The second air outlet 103 is composed of multiple second air outlet holes, so that the outlet air is more dispersed and diffused more quickly in the first temperature zone 201.

[0050] In other embodiments, the dual temperature zone module further includes a first baffle 6 and a second baffle 7. The first baffle 6 is connected to two adjacent inner walls of the storage cavity of the compartment body 21 to form an air outlet duct 100a. The second baffle 7 is connected to two other adjacent inner walls of the storage cavity of the compartment body 21 to form a return air duct 100b. That is, the air outlet duct 100a and the return air duct 100b are separated and have a certain distance therebetween. Figure 4 shown.

[0051] In other embodiments, a bottom groove 210 is provided at the bottom of the carriage body 21, and the bottom groove 210 is connected to the first temperature zone 201 and the second temperature zone 202 respectively to form a return air duct. Figure 5 shown.

[0052] It should be noted that the dual-temperature zone module 2 may be provided with only any one of the three types of return air ducts mentioned above, or may be provided with any two or more types at the same time. Figure 5 The dual temperature zone module is equipped with two return air ducts.

[0053] To facilitate temperature control of the first temperature zone 201 and the second temperature zone 202, the refrigeration unit 3 includes a controller (not shown in the figure), a first temperature measuring component (not shown in the figure), and a second temperature measuring component (not shown in the figure). The first temperature measuring component is disposed on the inner wall of the first temperature zone 201 and is used to detect the temperature of the first temperature zone 201. The second temperature measuring component is disposed on the inner wall of the second temperature zone 202 and is used to detect the temperature of the second temperature zone 202. The controller is electrically connected to the first temperature measuring component, the second temperature measuring component, the fan 42, and the refrigeration unit 3, respectively. The controller is used to control the operation of the refrigeration unit 3 based on the detection results of the first temperature measuring component, and is used to control the operation of the fan 42 based on the detection results of the second temperature measuring component.

[0054] During cooling, the power battery provides high-voltage electricity to the refrigeration unit 3, enabling the refrigeration unit 3 to operate normally and cool the first temperature zone 201, thereby forming the first temperature zone 201 into a refrigerated zone with a first preset temperature. The voltage conversion module converts the high-voltage electricity provided by the power battery into low-voltage electricity and provides it to the fan module 4, enabling the fan module 4 to operate normally, transporting the cold air from the first temperature zone 201 to the second temperature zone 202, and transporting the air from the second temperature zone 202 to the first temperature zone 201, forming a cooling circuit, realizing heat exchange, and forming the second temperature zone 202 into a refrigerated zone with a second preset temperature. At the same time, the temperature of the first temperature zone 201 is detected by the first detection component, and the temperature of the second temperature zone 202 is detected by the second detection component. When the temperature of the first temperature zone 201 is higher than the first preset temperature, the refrigeration unit 3 can be controlled to increase the refrigeration power. When the temperature of the first temperature zone 201 is lower than the first preset temperature, the refrigeration unit 3 can be controlled to reduce the refrigeration power. When the temperature of the second temperature zone 202 is lower than the second preset temperature, the fan 42 is controlled to reduce the speed. When the temperature of the second temperature zone 202 is higher than the second preset temperature, the fan 42 is controlled to increase the speed, so that the temperature of the first temperature zone 201 is within the first preset temperature and the temperature of the second temperature zone 202 is within the second preset temperature.

[0055] In this embodiment, the control system of the refrigeration unit 3 controls the operation of the fan module 4. Based on the cooling capacity demand of the second temperature zone 202, the cooling power of the refrigeration unit 3 and the speed of the fan module 4 are adjusted in real time to adjust the temperatures of the two temperature zones. This direct control enables the fan module 4 to adjust in real time according to the temperature zone requirements, thereby reducing the energy consumption of the entire vehicle. In addition, this embodiment can also be configured to enable the fan module 4 only after the refrigeration unit 3 is turned on, preventing power loss due to operator error.

[0056] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A dual temperature zone module, characterized in that: include: A refrigerated compartment includes a first temperature zone and a second temperature zone isolated from each other, wherein the first temperature zone is provided with an air outlet duct, the air outlet duct extending to the second temperature zone, and the air outlet duct is provided with an air inlet and a first air outlet, the air inlet is located in the first temperature zone, and the first air outlet is located in the second temperature zone; a refrigeration unit connected to the first temperature zone, the refrigeration unit being used to adjust the temperature of the gas in the first temperature zone; A fan module is connected to the air outlet duct. The fan module is used to introduce the cold air in the first temperature zone from the air inlet into the air outlet duct, so that the cold air flows through the air outlet duct and flows out from the first air outlet to the second temperature zone, and the air outlet direction of the fan module is in the same direction as the length extension direction of the air outlet duct.

2. The dual temperature zone module according to claim 1, characterized in that: The fan module is provided with an air supply port, which is connected to the air outlet duct, and along the length extension direction of the air outlet duct, the projection of the air supply port completely falls within the projection of the air inlet of the air outlet duct.

3. The dual temperature zone module according to claim 2, characterized in that: The fan module includes a frame and a fan. The frame is arranged on the inner wall of the first temperature zone and is connected to the air outlet. The fan is arranged in the frame. The frame is provided with a second return air outlet and the air supply outlet.

4. The dual temperature zone module according to claim 3, characterized in that: The frame is provided with a plurality of second air inlet holes, and the plurality of second air inlet holes constitute the second air return port.

5. The dual temperature zone module according to claim 1, characterized in that: The first air outlet is composed of a plurality of first air outlet holes.

6. The dual temperature zone module according to claim 1, characterized in that: The length extension direction of the portion of the air outlet duct located in the first temperature zone is the same as the length extension direction of the portion of the air outlet duct located in the second temperature zone, forming a straight-through air duct.

7. The dual temperature zone module according to claim 1, characterized in that: The refrigerated compartment includes a compartment body and a partition. The compartment body is provided with a storage cavity. The partition is arranged in the storage cavity and connected to the inner wall of the storage cavity, so that the storage cavity is divided into the first temperature zone and the second temperature zone.

8. The dual temperature zone module according to any one of claims 1 to 7, characterized in that: The refrigeration unit includes an indoor unit and an outdoor unit. The indoor unit is connected to the inner top wall of the first temperature zone, and the outdoor unit is connected to the outer side wall of the first temperature zone.

9. The dual temperature zone module according to claim 8, characterized in that: The fan module and the indoor unit are arranged on the same inner wall of the first temperature zone, or the fan module and the indoor unit are arranged on two adjacent inner walls of the first temperature zone.

10. A refrigerated truck, characterized in that: include: Automobile chassis; The dual-temperature zone module according to any one of claims 1 to 9, wherein the dual-temperature zone module is arranged on the automobile chassis; A power battery is arranged on the vehicle chassis and is electrically connected to the dual-temperature zone module.

11. The refrigerated vehicle according to claim 10, wherein: The refrigerated truck also includes a voltage conversion module, which is electrically connected to the power battery and the fan module respectively. The voltage conversion module is used to convert the high voltage electricity provided by the power battery into low voltage electricity and provide it to the fan module to provide working power for the fan module.

Images